Week down 4.5%, but Exosens share rebounds 2.5% during trading session
The Bordeaux-based optronic company is rising again in mid-morning trading, in a Paris market oriented towards purchases. This rebound occurs as its supply of neutron detectors to two American reactor designers has just been made public.
A rebound that has not yet recovered the moving averages
Exosens share gains 2.64% to €56.40, against €54.95 at the previous close, and the SBF 120 advances 0.94%. The security, however, still declines 4.57% over a week, and today's rebound leaves it 3.92% below its MA20 (€58.70). The MA50 and MA200, close to €60, also remain above the price.
The RSI at 39 draws a still weak configuration, away from the oversold zone. The support at €54.15, barely lost sight of after Thursday's session, bounds the recent pullback zone. This movement occurs in a market where the 10-year OAT yield stands at 4.90% according to the Banque de France survey of October 8, against the backdrop of tension in French debt.
Neutron detectors for the first two reactors in the DOE program
In a press release dated October 8, 2026, Exosens states that it has supplied neutron detectors to Antares Nuclear and Valar Atomics. These two designers led the first two reactor models to achieve criticality as part of the Reactor Pilot Program of the U.S. Department of Energy. The announcement highlights the group's nuclear division, which manufactures neutron, gamma and ion detectors. On the agenda front, the publication of nine-month results is expected on October 27, following the upward revision of 2026 targets unveiled on September 17 (growth of approximately 20% in revenue and approximately 25% in adjusted EBITDA).
